Demountable rim.



` F. 6I N. M. SPRANGER.

DENIOUNTABLE RIM.

APPLICATION FILED SEPT. 30. I9I5` l ,299,509. Patented Dee. 1), 1916.

lliyli@ TJTE@ PANT FRANK SPRANGER AND NICHOLAS 1v1; SPRANGER, OF' DETROIT. MICHIGAN. ASSIGNORS TG SIE-RANGER RIM AND WHEEL CO., OF DETROIT, MICHIGAN. A CORPORATION OF MICHGAN n'niviounrannn RIM.

iipecicationcl Letters Patent.

Patented line. 1li'. lllll.

To ZZ 107mm it may concern:

Be it known that we, FRANK Srnnnonn and NICHOLAS M. SPRANGER, citizens of the United States of America, residing at Detroit, in the county ot TvlVayne and State of Michigan, have invented certain new and useful improvements in Demountable Rims, of which'the following is a specification, reference being had therein to the accompany prevent circumferential shifting of the demountable rim relative to the fixed rim; connecting members which preventlateral displacement o the deinountable rim relative to the lined rim, and clamping members which prevent accidental displacement of the connecting members, said clamping members constituting automatic bolt locking KiGa-11S.

` mountable rim held thereby.

Fig. l is a perspective view of a portion of a Xed rim showing a portion of the de* In the drawing, the reference numeral 1 denotes av channel rim to which are connected spokes 2 and this lixed rim has a peripheral outer flange 3 and a peripheral inner liange 4l. The outer flange 3 has a plurality of openings 5 providing clearance for spaced members 6 rivetedor otherwise conneeted to ya demountable rim 7. rhe demountable rim 'Z is of a conventional tire holding type having peripheral. side flanges or clencher edges and said dclnountable rim is adapted to slide laterally upon the outer edges of the flanges 3 and a of. the fixed rim. with the spaced members G within the li' ed rim, against the inner wall of the tlange l.. and closing the openings 5 of the outer flange 3. The spaced members 6 are preferably rectangular and are provided with longitudinal bores 8 alinin'g with openings 9 in the inner flange il of the fixed rim 1.

Riveted or otherwise connected to the outer wall of the inner Atlange si of the fixed rim, at the sides of each of the openings 9 of said flange, are the ends ot' a clamping member 10 made of malleable metal. The inner face of the clamping member 10 is cut away, as at 11, whereby the clamping member will bridge or span the opening S) and permit of lthe central portion of said meinber being sprung inwardly toward the outer wall of the iiange el. The outer tace of 'l Y clamping member 10 has a protuberancc or boss 12 and said member and boss have an opening 13 with the walls thereof screwthreaded, said opening alining with the' `opening 9 of the flange 4 and the bore 3 of the member 6, whereby a bolt 1a can be placed in the bore 8, the opening 9, andy screwed into the opening 13 of the clamping member. The outer end'of the bolt'l/lhas a collarl and a head 16, the latter accommodating a spanner wrench or suitable implement employed for rotating the bolt 1st. rl`he collar 15 is adapted to engage an angle clip 17 placed upon the bolt prior to its insertion in the spaced member 6. The angle clip 1'? is of greater area than the opening 5 of the flange 3 and said angle clip has a lateral flange 18 extending under-the fixed rim 1 and preventing the angle clip 17 from rotating with the bolt 1&1-, while said clip permits of the spaced member 6 being firmly gripped. when the bolt 14 is tightened.

.The boss 12 of the clamping member is bifurcated or slitted, as at 19, the slit intersecting the opening 1S and thereby dividing the boss into two -retractable or distensiblc members. The slit 19 ofthe boss 12 Vcoperates with the cut away portion 11 thereof in permitting the central portion of the clamping member being sprung when the vbolt la isscrewed into the clamping niember and the collar 15 of the bolt jammed against'the clip 17. As the bolt is screwed weliicle wheels for automobiles and obviates the necessity of carrying an extra wire wheel for emergencyv purposes, insomuch that a fully equipped demountable rim can'be carried and easily and quickly substituted for a 'wheel rim having a punctured or otherwise injured tire. The channel fixed rim perfmits of wire spokes being properly connected to the sameI and the manner of con-v necting the demountable rim to the channel fixed rim insures rigidity and a wheelperiphery that is comparatively light in weight.' yet possessing'the features by which safety and durability are secured.

One embodiment of oui` invention has been illustrated, but it is to be understood that. the structural elements are susceptible to such variations and modifications as fall within the scopeof the appended claims.

lWhat we claim iszl. The combination of a fixed channel rim, a demountable rim adapted to fit .thereon` spaced members carried by said demountable rim adapted to extend into said fixed channel rim with the endsv of each member abutting the inner walls of said fixed channel rim, clips at the outer side of said xed channel rim, clamping members on the inner side of said fixed channel rim, fastening means for said clamping members fixed to said rim at the sides of said spaced members, said clamping members having central yieldable boss portions, and bolts adapted to extend through said clips and said spaced members and engage between said boss portions to spring said boss portions toward said rim so that said bolts will become automatically locked therebetween by turning said bolts against 7 said clips.

Q. In a wheel, a fixed channel rhin-clamping memberskat the inner side .of saidv fixed channel rim, fastening means connecting said clamping members to said fixed channel riln and protruding therein, a demountable rim adapted to fit on said fixed channel rim,

members carried by said demountable rim and adapted to fit in said fixed channel rim7 between the fastening means of saidvclamping members, and bolts extending through said fixed channel rim and said members into said clamping members.

In testimony whereof we affix our signatures in presence of two witnesses.`

FRANK SPRANGER. NICHOLAS M. SPRNGER. lVitnesses O'rro F. BARTHEL, G. E. MGGRANN. 

